groupoid造句

例句与造句

1. Momentum mapping on the fundamental groupoid
   基本群胚上的动量映射
2. The discussion of pullback dirac structures for lie bialgebroid and lefe invariant dirac structures on poisson groupoid is our purpose in this paper
   本文主要目的是借助极大迷向子丛对偶特征对来研究拉回dirac结构和泊松群胚上的dirac结构。
3. It's difficult to find groupoid in a sentence. 用groupoid造句挺难的